iOS NotificationServiceExtension实现VoiceBroadcast【app处于后台/被杀死的状态仍可进行语言播报】iOS12.1以上在后台或者被杀死无法语音播报的解决方案
文章目录前言I、开发步骤1、创建NotificationServiceExtension1.1选择新建NotificationServiceExtension1.2创建NotificationService.m继承UNNotificationServiceExtension，并实现方法`-(void)didReceiveNotificationRequest:(UNNotificationRequ